This one looks pretty good:

http://www.englishclub.com/vocabulary/common-words-5000.htm

Althrough I would strongly recommend reading actual material and look up words that you don't know. A good approach is to read the Simple English Wikipedia (http://simple.wikipedia.org/wiki/Main_Page). I also recommend Camrbidge Dictionary Online (http://dictionary.cambridge.org/), it provides great examples and also allows you to click on the words you don't know to look them up!

Hope this helps!

I strongly recommend you to read a book named 'Word Power Made Easy' written by Norman Lewis, because this little book have helped me a lot for building English vocabularies. The author explained each word by telling the stories, the roots relating to the words, and then there are some excersies for reviewing the words you have learned, thus this process makes readers have a great impression on the new words.

i think perfectyourenglish  is good

I found useful busuu.com. There are interactive lessons at this site. You can learn words and phrases easily while listening, reading and answering tests, just like playing a game. Themes arranged from most commonly used (like greetings, meeting, self introducing, asking a way to, discussing the weather and so on) to more complex things.

Good luck!

Thanks so much my friends :)

any other recommendations ?